import java.util.Scanner;
public class Test {
   /*     public static void main(String[] args) {
            Scanner scanner = new Scanner(System.in);
            while (scanner.hasNextInt()) {
                int x = scanner.nextInt();
                int y = scanner.nextInt();
                Data data = new Data(x,y);
                System.out.println(data.getX() + data.getY());
            }
        }*/
   public static void main(String[] args) {
       Date data = new Date();
       data.setDay(2021,5,21);
       data.printDate();
   }

}
class Date {
    public int year;
    public int month;
    public int day;

    public void setDay(int year, int month, int day) {
        this.year = year;
        this.month = month;
        this.day = day;
    }

    public void printDate() {
        System.out.println(this.year + "/" + this.month + "/" + this.day);
    }
}
